- Led scope and design of a multi-chain gateway with 3 engineers, supporting 8 blockchains generating $1M+ monthly volume.
- Engineered distributed transaction signing using AWS Nitro Enclaves and KMS to eliminate single points of compromise and to ensure institutional-grade security.
- Developed a fault-tolerant state recovery system that regenerates live game sessions from blockchain data, maintaining a seamless user experience during network interruptions or browser reloads.
- Optimized smart contract interactions and gas consumption by designing efficient data structures in Solidity and CosmWasm, reducing transaction costs for end-users and increasing platform adoption.
- Fixed breaking-news traffic outages by correcting a PHP session bug that unnecessarily created Postgres session rows, removing per-request session-table read/write contention and handling spike traffic without backend stalls.
- Collaborated with journalists to build a CMS crash-recovery system using draft caching, eliminating data loss and streamlining migration from PHP to Next.js with zero downtime.
- Automated subscription billing by rebuilding the payment backend to charge cards on customer join dates, integrating compliant, non-interactive processing to eliminate monthly batch uploads and manual outreach while improving on-time collections.
- Shipped a telehealth video-calling MVP by integrating Amazon Chime SDK into a React client and building AWS Lambda + DynamoDB meeting/orchestration APIs with appointment-based auth, validating UX and technical feasibility.
- Helped roll out the Node.js backend to an AWS serverless stack (Lambda, API Gateway, DynamoDB) to improve scalability and reduce operational overhead.
- Implemented a Jenkins-based CI/CD pipeline integrated with GitHub to standardize builds and deployments, improving release consistency and developer workflow.
- Coordinated closely with QA to triage, fix, and verify critical issues before launch, improving production readiness.
- Worked with real estate agencies to refine workflows and product requirements for a residency management system, improving platform usability and lead-generation outcomes.
- Migrated from PHP server-side rendering to a REST API for web and mobile applications.
- Integrated payment and delivery services into the Textile ERP using third-party APIs, improving order completion and fulfillment flow.